Magnetic recording media

Details Magnetic recording media Magnetic recording media

1979-09-11

1982-06-08

Silverman, Stanley S.

Stock material or miscellaneous articles

Composite

Of polyamidoester

252 6254, 360134, 360135, 360136, 428522, 428694, 428900, G11B 570

Patent

active

043339883

ABSTRACT:
A recording medium and, more particularly, a recording medium based on a composition exhibiting high dispersibility for finely-divided ferromagnetic powders having excellent abrasion resistance is disclosed in which the magnetic composition comprises a finely-divided ferromagnetic powders dispersed in a binder containing 2-chloroacrylonitrile polymer and a polyurethane prepolymer; in another embodiment of the invention the magnetic composition additionally contains a polyisocyanate compound.

REFERENCES:
patent: 3630771 (1971-12-01), Akashi et al.
patent: 3634137 (1972-01-01), Akashi et al.
patent: 3650828 (1972-03-01), Higashi
patent: 3681137 (1972-08-01), Nagazuno et al.
patent: 3926826 (1975-12-01), Graham et al.
patent: 4020227 (1976-04-01), Defeyes
patent: 4049871 (1977-09-01), Ogawa et al.
patent: 4152484 (1979-05-01), Bachmann et al.
patent: 4172176 (1979-10-01), Tanaka et al.
patent: 4196258 (1980-04-01), Huisman et al.

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